If i never said no but never said yes either What does that mean?

So it all started with me going with a friend to this guys house she met online and had been talking to for a while he picked us up and he had his cousin with him..I really wasn't paying him any attention or showing any Interest towards him I was just doing my friend a favor so we got to his house and we started drinking I only had one cup after a while my friend disappeared into a room with the guy so I was left alone with his cousin and at this point I wanted to leave I felt really uncomfortable so I texted my friend and told her I wanted to leave so she asked the guy if he could take us back and he said in the morning he will....like wtf I wanted to leave now so me and my friend went outside to talk and she said she wanted to stay until morning so now I had no choice but to stay we came back Inside..and she disappeared again for the rest of the night so his cousin walks around the house turning the lights out and he asks if I was going to sit there all night in the dark and I told him yes so he disappeared..5min later he comes back and asks again and I tell him the same thing so he sits down beside me and stares at me for a good minute then gets up to leave again so I lay down and before I know it I dozed off by accident then all of a sudden I wake up to the guys cousin on top of me I was so shocked i couldn't move I didnt tell him to stop I didn't move I didnt yell I didnt do anything but lay there until it was over and after he disappeared again and I got up quickly pulled my pants up and called my friend otp she came I to the living room and I told her that I wanted to leave NOW! So she woke the guy up and he took us back to her house I got out went inside told her dad tho take me home and I haven't talked to her since that day.. i thank god nothing else happened.. but what I wanted to ask was if I did not say yes but I didn't stop this guy..what should I do? Im so confused on what to call this or what to do..